620003423 has 4 divisors (see below), whose sum is σ = 667696008. Its totient is φ = 572310840.

The previous prime is 620003407. The next prime is 620003431. The reversal of 620003423 is 324300026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 620003423 - 2⁴ = 620003407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620003395 and 620003404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620003473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23846273 + ... + 23846298.

It is an arithmetic number, because the mean of its divisors is an integer number (166924002).

Almost surely, 2^620003423 is an apocalyptic number.

620003423 is a deficient number, since it is larger than the sum of its proper divisors (47692585).

620003423 is a wasteful number, since it uses less digits than its factorization.

620003423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47692584.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 620003423 is about 24899.8679313767. The cubic root of 620003423 is about 852.7034675718.

Adding to 620003423 its reverse (324300026), we get a palindrome (944303449).

The spelling of 620003423 in words is "six hundred twenty million, three thousand, four hundred twenty-three".